CVE-2025-11571 in Simplicity Studio v5
Summary
by MITRE • 03/24/2026
Vulnerable endpoints accept user-controlled input through a URL in JSON format which enables command execution. The commands allowed to execute can open executables. However, the commands cannot pass parameters or arguments. To successfully execute this attack, the attacker needs to be on the same network.
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Analysis
by VulDB Data Team • 03/29/2026
This vulnerability represents a critical command injection flaw that exists within specific application endpoints designed to process user input through URL parameters formatted in JSON structure. The vulnerability stems from inadequate input validation and sanitization mechanisms that permit direct execution of system commands based on user-supplied data. The flaw operates at the application layer where JSON-formatted URL parameters are parsed and interpreted without proper security controls, creating an attack surface that allows arbitrary command execution. According to CWE-77, this vulnerability falls under the category of Command Injection, which occurs when an application passes untrusted data to an operating system command without proper validation or encoding. The security implications are particularly severe given that the commands executed can launch executable files, potentially enabling attackers to gain unauthorized access to system resources and execute malicious payloads.
The technical exploitation of this vulnerability requires an attacker to exist within the same network segment as the target system, which limits the attack vector to internal network environments. This network proximity requirement suggests that the vulnerability may be present in applications designed for internal use or those with insufficient network segmentation controls. The attack mechanism involves crafting malicious JSON payloads containing command sequences that are then processed by the vulnerable endpoint. While the commands executed cannot accept additional parameters or arguments, this limitation does not prevent attackers from leveraging the functionality to execute pre-defined system commands or binaries. The restriction on parameter passing indicates that the vulnerability likely involves direct command execution rather than shell injection, where commands are passed as strings to system execution functions without proper parsing or validation.
The operational impact of this vulnerability extends beyond simple command execution to encompass potential system compromise and data exfiltration capabilities. Attackers could leverage this vulnerability to execute system utilities, access sensitive files, establish persistence mechanisms, or escalate privileges within the compromised environment. The requirement for network proximity suggests this vulnerability may be particularly concerning in environments where network segmentation is inadequate or where attackers have already achieved initial access through other means. Organizations with insufficient network monitoring or access controls may find this vulnerability particularly dangerous as it enables lateral movement and privilege escalation within the network perimeter. According to ATT&CK framework, this vulnerability maps to T1059.001 (Command and Scripting Interpreter: PowerShell) and T1059.003 (Command and Scripting Interpreter: Windows Command Shell) techniques, indicating that attackers could leverage this vulnerability to execute malicious commands using standard operating system interfaces.
Mitigation strategies should focus on implementing robust input validation and sanitization measures that prevent user-controlled data from being interpreted as executable commands. Organizations should deploy proper network segmentation controls to limit access to vulnerable endpoints and implement network monitoring to detect suspicious command execution patterns. The implementation of principle of least privilege access controls and regular security assessments can help identify and remediate similar vulnerabilities. Additionally, application-level protections such as command whitelisting, input encoding, and parameter validation should be enforced to prevent the exploitation of command injection vulnerabilities. The vulnerability highlights the importance of secure coding practices and input validation in preventing unauthorized command execution, particularly in applications that process external input through JSON formatted parameters. Regular security testing and vulnerability assessments should be conducted to identify similar flaws in networked applications and ensure that appropriate security controls are in place to prevent exploitation.